// Copyright (C) 2002-2006 Nikolaus Gebhardt/Alten Thomas
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in irrlicht.h

#ifndef __C_SOFTWARE_2_TEXTURE_H_INCLUDED__
#define __C_SOFTWARE_2_TEXTURE_H_INCLUDED__

#include "ITexture.h"
#include "CImage.h"

namespace irr
{
    namespace video  
    {

        /*!
        interface for a Video Driver dependent Texture.
        */
        class CSoftwareTexture2 : public ITexture
        {
        public:

            //! constructor
            CSoftwareTexture2(IImage* surface);

            //! destructor
            virtual ~CSoftwareTexture2();

            //! lock function
            virtual void* lock();

            //! unlock function
            virtual void unlock();

            //! Returns original size of the texture.
            virtual const core::dimension2d<s32>& getOriginalSize();

            //! Returns (=size) of the texture.
            virtual const core::dimension2d<s32>& getSize();

            //! returns unoptimized surface
            virtual CImage* getImage();

            //! returns texture surface
            virtual CImage* getTexture();

            //! returns driver type of texture (=the driver, who created the texture)
            virtual E_DRIVER_TYPE getDriverType();

            //! returns color format of texture
            virtual ECOLOR_FORMAT getColorFormat();

            //! returns pitch of texture (in bytes)
            virtual s32 getPitch();

            //! Regenerates the mip map levels of the texture. Useful after locking and 
            //! modifying the texture
            virtual void regenerateMipMapLevels();

        private:

            //! returns the size of a texture which would be the optimize size for rendering it
            inline s32 getTextureSizeFromSurfaceSize(s32 size);

            CImage* Image;
            CImage* Texture;
            core::dimension2d<s32> OrigSize;

        };


    } // end namespace video
} // end namespace irr

#endif

